Mihalceanu, L.; Bozhko, D. A.; Vasyuchka, V. I.; Serga, A. A.; Hillebrands, B.; Pomyalov, A.; L’vov, V. S.; Tyberkevych, V. S. Magnon Bose–Einstein Condensate and Supercurrents Over a Wide Temperature Range. Ukr. J. Phys. 2019, 64, 927.